BIOS parameter erasing method and apparatus applied to computer system
a computer system and bios parameter technology, applied in the field of computer systems, can solve the problems of inability to successfully boost the computer system without these bios parameters, failure of the boost system or the startup failure of the monitor, user set wrong parameters, etc., and achieve the effect of convenient erase of bios parameters
Active Publication Date: 2010-04-01
ASUSTEK COMPUTER INC
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Benefits of technology
[0010]Therefore, the object invention is to provide BIOS parameter eras
Problems solved by technology
Because these BIOS parameters are so important, the computer system cannot be successfully boosted without these BIOS parameters.
However, the user may set wrong parameters.
Once the user sets wrong some important BIOS parameters, such as the operation frequency of CPU, a boost failure of the computer system or a startup failure of the monitor may be happened.
Once the startup failure of monitor is occurred, the user has no way to correct the BIOS parameters, because the monitor cannot display messages on the screen.
Firstly, the user must enforce to shutdown the computer system.
However, no matter restoring the initial BIOS parameters back to the computer system via the pin set 111 or via temporarily removing the RTC battery 109 from motherboard 10, the user must dismantle and reassemble the case of the computer system and thus is inconvenient.
Method used
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Embodiment Construction
[0018]An erasing of CMOS RAM can be done without dismantling and reassembling the case of the computer system according to the present invention. When a user presses the power button arranged on the case of the computer system several times (say, four times), a signal for erasing the CMOS RAM is then automatically generated. Because the power button is arranged on the case of the computer system, the erasing of the CMOS RAM can be done without the work of dismantling and reassembling the case of the computer system.
[0019]FIG. 2 is a block diagram illustrating the computer system of the present invention capable of erasing the CMOS RAM via pressing the power button several times. The computer system of the present invention mainly comprises a motherboard 20 and a power button 22, where the power button 22 is arranged on a case (not shown) of the computer system. The motherboard 20 further comprises a CPU 201, a north bridge 203, a south bridge 205, a CMOS RAM 207, and a counter 209 c...
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A computer system includes a triggering device; and a motherboard, connected to the triggering device, further comprising: a memory stored with a setting parameter of a basic-input-output-system; and a counter connected between the triggering device and the memory; wherein an erasing signal, for erasing the memory, is outputted to the memory from the counter according to a triggering signal outputted from the triggering device while a boosting procedure cannot be successfully executed by the computer system.
Description
FIELD OF THE INVENTION[0001]The present invention relates to a computer system with BIOS parameter stored in CMOS (Complementary Metal Oxide Semiconductor), and more particularly to a BIOS parameter erasing method and apparatus applied to the computer system.BACKGROUND OF THE INVENTION[0002]The main function of BIOS (Basic Input Output System) is to initialize the hardware of a computer system while a user power on the computer system. That is, the boosting procedure is first executed by the computer system based on a plurality of parameters of the BIOS while the user pushing the power button of the computer system. Basically, the BIOS parameters are stored in a CMOS (Complementary Metal Oxide Semiconductor) that is arranged on a motherboard of the computer system, where CMOS is a RAM (Random-Access Memory) and requires less power than other types of memories.[0003]After the power button of the computer system is pushed, a POST (Power-On-Self-Test) program is executed. The user can ...
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Login to View More IPC IPC(8): G06F1/24
CPCG06F8/60
Inventor CHENG, HSU-HUNGSUN, PEI-HUACHIN, CHUNG-TA
Owner ASUSTEK COMPUTER INC